@media screen, projection
{
  #col1 { width: 75%; float:right;}
  #col1_content { padding-left: 10px; padding-right: 20px; }

  #col2, #col2_content { display:none; }

  #col3 { margin-right: 75%; margin-left: 0; }
  #col3_content { padding-left: 20px; padding-right: 10px; }
}
